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Fl_TeacherTool: Award-winning Software With an Uncertain Future

"Fl_TeacherTool uses pre-existing applications as the basis for
many of its features, including VNC Reflector, VNC Snapshot,
RealVNC, ImageMagick, and gThumb. In this sense, Fl_TeacherTool is
partly a control center -- designed mainly for teachers, but useful
for anyone managing a thin client system, such as a manager of an
Internet café who might want to monitor users' activities or
interact with them.

"The main window of Fl_TeacherTool is a list of clients that are
logged in, with function buttons arrayed to the left. The list also
displays the amount of memory that each client is using, as well as
how long each user has been logged in. These features are important
because memory usage is often an issue on thin client systems.
Clients that are suddenly using more memory than anyone else may be
doing something that they shouldn't, such as watching a video.
Similarly, in a public or semi-public setting, a user logged in for
a long period may have forgotten to log off, tying up resources
that other users might need. Administrators must refresh the list
from time to time, since it is not updated automatically with new
logins."